https://cerre.eu/wp-content/uploads/2023/06/CERRE_Future-of-Rail-Report_06.06.2023.pdf
https://www.dailymaverick.co.za/article/2023-10-01-eskoms-broken-heart-inside-the-leaking-procurement-systems-that-keep-south-africa-in-the-dark/
https://research.berenberg.com/report/1F2D7879F366F97B76F9E29341CA3D06